Before Working Inside Your System; After Working Inside Your System; Recommended Tools; Sled - Dell EMC PowerEdge XE7420 Installation And Service Manual

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NOTE:
While replacing the hot swappable PSU, after next server boot; the new PSU automatically updates to the same
firmware and configuration of the replaced one. For more information about the Part replacement configuration, see the
Lifecycle Controller User's Guide at
NOTE:
While replacing faulty storage controller/FC/NIC card with the same type of card, after you power on the system;
the new card automatically updates to the same firmware and configuration of the faulty one. For more information about
the Part replacement configuration, see the Lifecycle Controller User's Guide at

Before working inside your system

Prerequisites
Follow the safety guidelines listed in
Steps
1. Power off the system and all attached peripherals.
2. Disconnect the system from the electrical outlet, and disconnect the peripherals.
3. If applicable, remove the system from the rack.
For more information, see the Rail Installation Guide relevant to your rail solutions at www.dell.com/xemanuals.

After working inside your system

Prerequisites
Follow the safety guidelines listed in
Steps
1. If applicable, install the system into the rack.
For more information, see the Rail Installation Guide relevant to your rail solutions at www.dell.com/xemanuals.
2. Reconnect the peripherals, and connect the system to the electrical outlet, and then power on the system.

Recommended tools

You need the following tools to perform the removal and installation procedures:
● Phillips #1 screwdriver
● Phillips #2 screwdriver
● Torx #T30 screwdriver
● 5mm hex nut screwdriver
● Plastic scribe
● 1/4 inch flat blade screwdriver
● Wrist grounding strap connected to the ground
● ESD mat

Sled

Removing the sled

Prerequisites
1. Follow the safety guidelines listed in
https://www.dell.com/idracmanuals
Safety
instruction.
Safety
instruction.
Safety
instructions.
https://www.dell.com/idracmanuals
Installing and removing system components
45

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